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Merge pull request #8197 from csukuangfj/csukuangfj-patch-1

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Fix typos in the documentation for AutoBuffer. (#8197)

* Allocate 1000 floats to match the documentation

Fix the documentation of `AutoBuffer`. By default, the following code
```.cpp
cv::AutoBuffer<float> m;
```` 
allocates only 264 floats. But the comment in the demonstration code says it allocates 1000 floats, which is 
not correct.

* fix typo in the comment.
This commit is contained in:
Fangjun KUANG 2017-02-13 11:58:44 +01:00 committed by Alexander Alekhin
parent 642e4d97a4
commit 1e11657ba4
1 changed files with 4 additions and 4 deletions
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8
modules/core/include/opencv2/core/utility.hpp
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@ -102,7 +102,7 @@ CV_EXPORTS void setUseCollection(bool flag); // set implementation collection st
\code
void my_func(const cv::Mat& m)
{
cv::AutoBuffer<float> buf; // create automatic buffer containing 1000 floats
cv::AutoBuffer<float> buf(1000); // create automatic buffer containing 1000 floats
buf.allocate(m.rows); // if m.rows <= 1000, the pre-allocated buffer is used,
// otherwise the buffer of "m.rows" floats will be allocated
@ -137,9 +137,9 @@ public:
void resize(size_t _size);
//! returns the current buffer size
size_t size() const;
//! returns pointer to the real buffer, stack-allocated or head-allocated
//! returns pointer to the real buffer, stack-allocated or heap-allocated
operator _Tp* ();
//! returns read-only pointer to the real buffer, stack-allocated or head-allocated
//! returns read-only pointer to the real buffer, stack-allocated or heap-allocated
operator const _Tp* () const;
protected:
@ -147,7 +147,7 @@ protected:
_Tp* ptr;
//! size of the real buffer
size_t sz;
//! pre-allocated buffer. At least 1 element to confirm C++ standard reqirements
//! pre-allocated buffer. At least 1 element to confirm C++ standard requirements
_Tp buf[(fixed_size > 0) ? fixed_size : 1];
};